• Silent check valves were developed to eliminate water hammer due to water flow reversal in clear water pump applications
  • Vertical and horizontal mounting
  • Valve opens when upstream pressure exceeds downstream pressure by 1/4 to 1/2 psi
  • An internal spring closes valve just prior to an equalizing pressure on both sides providing a quiet and shock less valve closing
  • Maximum recommended flow velocity for all valves is 12' per second
  • Wafer style valve body is cast iron, seat ring is aluminum bronze, seat/seat seal are EPDM, aluminum bronze bushing and disc, with SS spring and hardware
  • The wafer style is rated 200 psi for all models sizes

FNW 681 8 in. Epoxy Coated Cast Iron Wafer Check Valve


Manufacturer Part #: FNW681X

Valve Size: